38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
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; RUN: llc -O0 -mtriple=i386-unknown-linux-gnu -relocation-model=pic < %s | FileCheck %s
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; Unbind the ebx with GOT address in regcall calling convention, or the following
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; case will failed in register allocation by no register can be used.
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;#define REGCALL __attribute__((regcall))
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;int REGCALL func (int i1, int i2, int i3, int i4, int i5);
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;int (REGCALL *fptr) (int, int, int, int, int) = func;
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;int test() {
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; return fptr(1,2,3,4,5);
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;}
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@fptr = global i32 (i32, i32, i32, i32, i32)* @__regcall3__func, align 4
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declare x86_regcallcc i32 @__regcall3__func(i32 inreg, i32 inreg, i32 inreg, i32 inreg, i32 inreg)
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; Function Attrs: noinline nounwind optnone
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define i32 @test() {
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; CHECK-LABEL: test:
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; CHECK: .L0$pb:
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; CHECK-NEXT: popl %eax
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; CHECK: .Ltmp0:
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; CHECK-NEXT: addl $_GLOBAL_OFFSET_TABLE_+(.Ltmp0-.L0$pb), %eax
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; CHECK-NEXT: movl fptr@GOT(%eax), %eax
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; CHECK-NEXT: movl (%eax), %ebx
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; CHECK-NEXT: movl $1, %eax
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; CHECK-NEXT: movl $2, %ecx
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; CHECK-NEXT: movl $3, %edx
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; CHECK-NEXT: movl $4, %edi
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; CHECK-NEXT: movl $5, %esi
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; CHECK-NEXT: calll *%ebx
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entry:
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%0 = load i32 (i32, i32, i32, i32, i32)*, i32 (i32, i32, i32, i32, i32)** @fptr, align 4
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%call = call x86_regcallcc i32 %0(i32 inreg 1, i32 inreg 2, i32 inreg 3, i32 inreg 4, i32 inreg 5)
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ret i32 %call
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}
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